Short interest in iShares S&P 100 Fund (ARCA:OEF) increased during the last reporting period, rising from 49.78K to 62.19K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 185.38K shares traded per day, it would take 1 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.